Dyfyniad APA

MARDEN ORISON SWETT. (1961). CONQUEST OF WORRY. ORIENT PUBLISHING COMPANY.

Dyfyniad Arddull Chicago

MARDEN ORISON SWETT. CONQUEST OF WORRY. DELHI: ORIENT PUBLISHING COMPANY, 1961.

Dyfyniad MLA

MARDEN ORISON SWETT. CONQUEST OF WORRY. ORIENT PUBLISHING COMPANY, 1961.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.